基于单片机的无线电子体温计设计论文（本科）毕业设计论文.doc

摘 要 体温生理参数是人体最重要、最基本的生命指标,对危重病人进行生命指标参数的监测是医务工作者及时了解病情状况的重要手段之一，对于日常护理和病情检测都是非常重要的。现有体温计大概分为两种类型：一种是常见的玻璃水银体温计，另一种是红外体温计。水银体温计价格便宜，但是易破裂，测温时间较长，大约5分钟，使用不便。红外体温计是通过对物体自身辐射的红外能量的测量，准确地测定它的表面温度。它用的红外传感器只是吸收人体辐射的红外线而不向人体发射任何涉嫌，采用的是被动式且非接触式的测量方式，因此红外体温计不会对人体产生辐射伤害。比起前种测温方法，红外体温计有着响应时间快、使用安全及使用寿命长等优点。 基于单片机的无线电子体温计设计主要运用红外线原理，采用热释电红外传感器来采集人体发射出的红外线，将其转换后的电信号通过A/D转换送入单片机，由MCS-51单片机来实现温度值的转换及送入LED显示，同时还加入了时钟功能和超温报警功能，在软件的控制下，实现智能化的体温测量，精确测温，使设计具有实用性。 Abstract Temperature is the most important physiological parameters, the most basic life index, for the critically ill patient life parameters monitoring is medical workers to understand the condition condition is one of the important means, for the daily care and disease detection is very important. The existing thermometer is roughly divided into two types: one is common glass mercury thermometer, the other is a infrared thermometer. The mercury thermometer is cheap, but easy to rupture, measuring long, about 5 minutes, inconvenient use. Infrared thermometer is objects by their infrared radiation energy measurement, accurate determination of its surface temperature. It uses infrared sensor just absorb infrared radiation of human body and not to the human body to launch any suspected, uses is passive and non-contact measurement, thus the infrared thermometer will not produce radiation to human body injury. Compared with the former method of temperature measurement, infrared thermometer has a fast response time, safe use and long service life etc. Based on single-chip wireless electronic thermometer design mainly uses the infrared principle, using the pyroelectric infrared sensors to collect the body emit infrared, converts the electrical signal after conversion into the microcontroller through A/D, by the MCS-51 chip to realize the temperature value of the conversion and into the LED display, and also joined and over-temperature alarm clock function function, under the control of software, the realization of intelligent tempe